Words Light on tongue, Heavy on the balance

Abu Hurayrah (radhi-yAllaahu 'anhu) reported that the Messenger of Allaah (sal-Allaahu 'alayhe wa sallam) said:
[There are] Two words, [which are] light on the tongue, heavy on the Scale and beloved to The Most Gracious:

سُبْحَانَ اللَّهِ وَبِحَمْدِهِ، سُبْحانَ اللَّهِ الْعَظِيمِ

How perfect Allaah is and I praise Him. How perfect Allaah is, The Supreme.